Vise type fixture having two pairs of jaws



Dec. 26, 1950 C. E. OMALLEY VISE TYPE FIXTURE HAVING TWO PAIRS OF JAWS Filed May 25, 1948 AT5 /f/ @fn 915W @wwf/afg@ Patented Dec. 26, 1950 UNITED STATES PATENT OFFICE VISE TYPE FIXTURE HAVING 'TWO PAIRS OF JAWS Charles E. OMalley, Chicago, Ill.

Application May 25, 1948, Serial No. 29,045

Claims.

l This invention relates to a vise type fixture and has for one of its objects the provision of a fixture which is capable of positioning and clamping two or more pieces of material of the same for different shapes, or a single irregularly shaped piece of material, in a position for doingwork thereon. The xture is useful, for example, for drilling, reaming or tapping two or more pieces in one operation when an aligned hole or tap in the two pieces is desired. The iixture, however, has many other uses, as will be apparent to those skilled in the art.

Heretofore, when two or more pieces of similarly or dissimilarly shaped material were to be drilled, reamed or tapped, it was necessary to use two or more hand clamps. It is difficult to handle the hand clamps and the fittings to assemble the pieces, and the hand clamps ofttimes do not vthe use of common hand clamps for this purpose.

It is also an object of the invention to provide a fixture of the type described, wherein one or more of the pieces to be worked upon may be clamped and held in position independently of one or more other pieces which are to be simultaneously worked upon.

It is an additional object of the invention to provide a vise type xture in which the pieces to be worked upon may be readily positioned or aligned, if alignment is required.

It is a further object of the invention to provide xture which has three movable or adjustable plates or jaws and one fixed plate or jaw, which cooperates with one of the movable jaws.

It is also an object of the invention to provide a Vxture having two jaws or plates extending at substantially right angles to two other jaws or plates; and specifically to provide for movement of three of the jaws.

It is an additional object of the invention to provide a vise type fixture which may be disposed in two positions 90 removed on the bed of a machine or on stilts.

With these and other objects in view, the invention consists in the construction, arrangement. and combination of the various parts of my device whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in the claims and illustrated in thel accompanying drawings, wherein:

Figure 1 is a perspective view of the improved vise type fixture;

Figure 2 is a side View of the xture with parts' thereof in section, and illustrates a. drill and, head with two pieces of material in section held.

by the fixture;

Figure 3 is a vertical sectional view of the fix` ture showing some of the parts broken away, and

is taken on line 3-3 of Figure 2;

Figure 4 is a partial top plan view of the iixl ture; and

Figure 5 is a partial view somewhat similar to Figure 3, lwith additional parts in section, to,

illustrate how the adjusting screws are assembled with respect to the movable jaws` or plates.

Referring specifically to the drawing for a des. tailed description of the invention, numeral II;

designates generally the body portion of the xvture, which is formed of a relatively flat bottom wall l2 and a at side wall I3. 'Obviously the fixture may be disposedon a bed plate or on a stilt and may rest on either the surface I2 orf I3, depending upon the work which is to be done.

A guide rail I4 extends upwardly from the front of the flat surface i2 and an L-shapedv guide rail I5 is spaced therefrom and is secured to the main frame II. A guide rail l extends forwardly from wall I3 and is spaced from the horizontal plates Il.

A fixed plate or jaw I8, which extends hori zontally across the body portion II, as viewed in Figure l, is secured to the plate ll of the body Il. The jaw i8 is shouldered as shown at I9.

A movable plate or jaw 2I is also horizontally disposed as viewed in Figure 1, and is slidable on- A second movable plate or jaw 2li extends ver. tically across the body portion 1I, as viewed inf Figure 1, and is shouldered at 25. It is adapted,

One end of the main body portion; is provided with a pair of triangularly shaped The plate or jaw 3 to slide on the rails I4 and I5, and is slidably secured thereto by means of a plate 3| secured to the jaw 24 .by screws (not shown).

A third movable plate or jaw 26 is vertically disposed, as shown in Figure 1, and is shouldered as shown at 2'1. The plate 26 is adapted to also slide along the rails I4 and I5 and is slidably retained thereon by means of a plate 28 positioned within the body II and secured to the jaw or plate 26 by means of screws 29.

A relatively heavy screw threaded member 32 is provided for moving the plate or jaw 2|. rIhe threaded member 32 has a knurled knob 33 secured at one 'end thereof and the other end is rotatably secured to the jaw 2|, in a manner hereinafter described. A threaded block 34 through which the threaded member 32 extends, is secured to the body by means fof screws 35. Rotation of the knob 33 rotates the threaded 2t vand has a, knuried knob 4| at the other end. 1

It cooperates with "a similar threaded block 42 secured to the body II by vscrews 43 to move the jaw 24 when the knob 4| is rotated.

The manner of rotatably attaching the threaded members 32, '36 and 4I) to the jaws 2|, 24, and 26, respectively, will now be described. Each of the movable jaws is provided with a recess 44, into which one 'end lof the threadedk members extends. Each of the threaded members is provided with `'a fiat unthreaded portion 45 iat its end. Likewise, each of ythe threaded members is provided with a reduced portion 46. A recess 48 is provided in each movable .jaw and a pin 41 -is driven therein and enters the recess 44 at the reduced portion 46 of the threaded members. This construction rotatably secures each of the threaded members in the respective jaws and prevents the threaded members from pulling out 'of the jaws. It also 'provides asimple means -for assembling the parts- In Figure 2, I have shown the head 49 of a drill press, which head has secured thereto a drill or bit 5D. L have lalso shown two pieces of material which are to be simultaneously drilled with an aligned hole, and these pieces of material have -been given numerals 5| and 52. For the sake of illustration, I have shown the upper piece of material 5I as being of less width than the lower piece 52 and the drilling as 'off center in the 'piece 5I and substantially 'centered in the piece 52.

In using the fixture, one of the pieces of material to be worked on is first secured, preferably, between jaws I8 and 2|, and is clamped therein by' the jaw 2|. After it has been properly posi= tioned 'and clamped, it need not be again moved. The Second piece of material is then positioned where desired between the `clam`ps`24 and 26. Since both of these clamps 'are movable., obviously, the piece may be positioned at vany desired position. If the pieces are to have their edges aligned, it is a simple matter to take a straightv e'dge and align them. After the second piece has been clamped securely between edges24 and 26, whatever work is desired may be performed.

In the illustration shown in Figure 2, an example of drilling an aligned hole in dissimilar shaped pieces is illustrated.

It is obvious that more than two pieces of material may be worked upon at one time, or that a single irregularly shaped piece of material may be clamped. Several pieces of material may be retained between the jaws 24 and 26 in the example shown in Figure 2. Furthermore, if the piece between one set of the jaws is longer than the jaws, a stilt may be used and the fixture positioned thereon. Obviously, the fixture may rest either on the surface I2 or may be rotated and rest on the surface I3. The Vposition of the fixture will, of course, depend upon the work to be done and the tool to be used.

vIt is also obvious that this fixture is adapted VTt'o 'prop'erly position and clamp objects of different shapes, such as, for example, spherical shape. Any shaped article may be positioned and clamped in a fixture of this type if the jaws have the correct internal contour.

It is also to be noted that the jaws lil and 2| are 'slotted or shouldered along their upper edge, and that the jaws 24 and 26 are slotted or shouldered along their upper and front edges as viewed in Figure 1. This permits the clamping and positioning of thin pieces of material.

From the foregoing, it will be apparent that I have provided an improved vise type xture which eliminates any clamps, and which properly positions and holds one or two or more pieces of material which are to b'e worked upon simultaneously.

Some changes may be made in the construction and arrangement of the parts of my device without departing from the disclosed functions and purpose of my invention, and it is my intention to cover by my claims any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope without sacrificing any of the advantages there- Ofi v l I claim as my invention:

1. A vise type fixture for positioning and clamping material to be worked upon comprising a body member, a pair of rail means on said body member, said rail means including iirst and second guide surfaces having respective planes at an angle to each other, a pair of movable jaws cooperable to clamp a work piece, each of said jaws having a non-clamping side surface slidably supported on said first guide surface and extending beyond said second guide surface,` a single movable jaw slidably supported on said second guide surface, said single jaw having a non-clamping side surface coplanar with said iirst guide surface, and a xed jaw having a nonclamping side surface coplanar with said first guide surface and being cooperable with said single movable jaw to clamp a work piece, whereby the side surface of one of the pair of movable jaws and the side surface of said single movable jaw are slidable in adjacent parallel planes so as to be movable across each other, and the side surface of the other of the pair of movable jaws is slidable in a plane parallel to an adjacent vplane containing the side surface of the fixed jaw so as to be movable across the latter surface.

2. A vise type fixture for positioning and clamping material to be worked upon comprising a body member, a pair of rail means on said body member, said rail means including rst and second guide surfaces having respective planes at an angle of ninety degrees to each other, a pair of movable jaws cooperable to clamp a work piece, each of said jaws having a non-clamping side surface slidably supported on said rst guide surface and extending beyond said second guide surface, a single movable jaw slidably supported on said second guide surface, said single jaw having a non-clamping side surface coplanar with said first guide surface, and a fixed jaw having a non-clamping side surface coplanar with said first guide surface and being cooperable with said single movable jaw to clamp a work piece, whereby the side surface of one of the pair of movable jaws and the side surface of said single movable jaw are slidable in adjacent parallel planes so as to be movable across each other, and the side surface of the other of the pair of movable jaws is slidable in a plane parallel to an adjacent plane containing the side surface of the fixed jaw so as to be movable across the latter surface.

3. A vise type xture as set forth in claim 2 wherein threaded members cooperate with the movable jaws to eiect movement thereof.

4. A vise type fixture as set forth in claim 2 wherein threaded members cooperate with the movable jaws to eiect movement thereof and means are provided for rotatably securing the threaded members in the respective movable jaws.

5. A vise type fixture as set forth in claim 2 wherein guide plates are secured to the movable jaws and cooperate with the rail means to slidably secure the movable jaws thereto.

CHARLES E. OMALLEY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 722,582 Hough et al. Mar. 10, 1903 804,045 Rietzel Nov. 7, 1905 1,120,466 Fegley et al. Dec. v8, 1914 2,241,297 Exstam May 6, 1941 

